Romney Denver Rally

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Former Denver Broncos quarterback John Elway takes the stage to introduce Republican presidential candidate Mitt Romney during a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Former Denver Broncos quarterback John Elway introduces Republican presidential candidate Mitt Romney (L) during a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate Mitt Romney at a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks during a campaign rally at the Wings Over the Rockies Air and Space Museum on Oct. 1, 2012, in Denver. (Photo by Justin Sullivan/Getty Images)

Mitt Romney Holds Campaign Rally In Denver Ahead Of First Debate

Former Denver Broncos quarterback John Elway introduces Republican presidential candidate Mitt Romney (L) during a campaign rally at the Wings Over the Rockies Air and Space Museum in Denver on Oct. 1, 2012. (credit: JEWEL SAMAD/AFP/GettyImages)